.fadebox {
    display: block;
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index:1001;
    -moz-opacity: 0.8;
    opacity:.80;
    filter: alpha(opacity=80);
}
.overbox {
    display: block;
    position: absolute;
    top: 25%;
    left: 30%;
    width: 454px;
    height: 512px;
    z-index:1002;
    overflow: auto;
    box-shadow: 0px 1px 26px

}

    // webkit